cmd/eqn/size.c

/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*  Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*    All Rights Reserved   */

/*
 * Copyright (c) 1980 Regents of the University of California.
 * All rights reserved. The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include "e.h"

void
setsize(char *p)    /* set size as found in p */
{
    if (*p == '+')
        ps += atoi(p+1);
    else if (*p == '-')
        ps -= atoi(p+1);
    else
        ps = atoi(p);
    if (dbg) printf(".\tsetsize %s; ps = %d\n", p, ps);
}

void
size(int p1, int p2)
{
    /* old size in p1, new in ps */

    int effps, effp1;

    yyval = p2;
    if (dbg)
        printf(".\tb:sb: S%d <- \\s%d S%d \\s%d; b=%d, h=%d\n",
            yyval, ps, p2, p1, ebase[yyval], eht[yyval]);
    effps = EFFPS(ps);
    effp1 = EFFPS(p1);
    printf(".ds %d \\s%d\\*(%d\\s%d\n", yyval, effps, p2, effp1);
    ps = p1;
}

void
globsize(void)
{
    char temp[20];

    getstr(temp, 20);
    if (temp[0] == '+')
        gsize += atoi(temp+1);
    else if (temp[0] == '-')
        gsize -= atoi(temp+1);
    else
        gsize = atoi(temp);
    yyval = eqnreg = 0;
    setps(gsize);
    ps = gsize;
    if (gsize >= 12)    /* sub and sup size change */
        deltaps = gsize / 4;
    else
        deltaps = gsize / 3;
}